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12270089 = 136115473
BaseRepresentation
bin101110110011…
…101000001001
3212002101101202
4232303220021
511120120324
61114553545
7206202566
oct56635011
925071352
1012270089
116a20777
1241388b5
132707c10
1418b586d
1511258ae
hexbb3a09

12270089 has 8 divisors (see below), whose sum is σ = 13431432. Its totient is φ = 11139840.

The previous prime is 12270077. The next prime is 12270101. The reversal of 12270089 is 98007221.

It is a happy number.

12270089 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12270077) and next prime (12270101).

It can be written as a sum of positive squares in 4 ways, for example, as 250000 + 12020089 = 500^2 + 3467^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12270089 - 216 = 12204553 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (12270689) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6944 + ... + 8529.

It is an arithmetic number, because the mean of its divisors is an integer number (1678929).

Almost surely, 212270089 is an apocalyptic number.

It is an amenable number.

12270089 is a deficient number, since it is larger than the sum of its proper divisors (1161343).

12270089 is a wasteful number, since it uses less digits than its factorization.

12270089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15547.

The product of its (nonzero) digits is 2016, while the sum is 29.

The square root of 12270089 is about 3502.8686815238. The cubic root of 12270089 is about 230.6477581016.

The spelling of 12270089 in words is "twelve million, two hundred seventy thousand, eighty-nine".

Divisors: 1 13 61 793 15473 201149 943853 12270089